* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background-color: #f0f2f5;
    min-height: 100vh;
    padding: 0;
}

.header {
    background-color: #2c3e50;
    color: white;
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo {
    width: 180px;
    height: auto;
    margin-right: 20px;
}

.nav-menu {
    display: flex;
    gap: 15px;
}

.nav-btn {
    background-color: transparent;
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s;
    text-decoration: none;
    display: inline-block;
}

.nav-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.main-content {
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 20px;
}

.search-section {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 20px;
    margin-bottom: 30px;
    text-align: center;
}

.search-bar {
    margin: 0 auto;
    max-width: 600px;
}

.search-bar input {
    width: 70%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.search-bar button {
    padding: 12px 20px;
    background-color: #2563eb;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

.card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 40px;
    width: 100%;
}

/* Guide Container */
.guide-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
    margin-top: 20px;
}

.guide-item {
    display: flex;
    gap: 20px;
    padding: 25px;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.guide-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.guide-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2);
    border-color: #667eea;
}

.guide-item:hover::before {
    transform: scaleY(1);
}

.guide-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
    display: flex;
    align-items: flex-start;
    padding-top: 5px;
}

.guide-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.guide-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2c3e50;
    margin: 0;
}

.guide-description {
    color: #64748b;
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

.guide-link {
    color: #2563eb;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    margin-top: auto;
    transition: all 0.3s ease;
}

.guide-link:hover {
    color: #1d4ed8;
    transform: translateX(3px);
}

.footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
    }

    .nav-menu {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }

    .guide-container {
        grid-template-columns: 1fr;
    }
    
    .guide-item {
        flex-direction: column;
        gap: 15px;
        padding: 20px;
    }
    
    .guide-icon {
        align-self: center;
    }
    
    .search-bar input {
        width: 60%;
    }
}